Ball point pen



FIG. 1 is a perspective view of a ball point pen showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is an explanatory right side elevational view thereof showing the state of use. 

The ornamental design for a ball point pen, as shown and described. 